Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"vaporizing"”.
-
Heat transfer to a vaporizing immiscible drop
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1963.
-
Chemically Reacting Boundary-Layer Over a Vaporizing Surface
Made available in DSpace on 2014-12-10T23:36:43Z (GMT). No. of bitstreams: 1 7309967.pdf: 9234167 bytes, checksum: 4c65291ea957b540f93eb4678d234742 (MD5) Previous issue date: 1972
-
Modeling gap closure within vaporizing transmission lines of pulsed power machines using particle-in-cell direct simulation Monte Carlo (PIC-DSMC)
In this thesis the applicability of two novel numerical methods - Event Splitting (ES) and Dual Grids - was studied for modeling gap closure within an overall DSMC-PIC approach. Gap closure is a difficult computational problem due to massive gradients in density and electrostatic properties, …
-
Numerical Framework for Simulating Multiphase Flows with Phase Change
… a computational framework for simulating such a vaporizing flow. The framework is built from the ground up starting from the laws of conservation of mass, momentum, and energy combined with the relevant thermodynamic relations. The framework discussed in this work will have a few properties that …
-
Preliminary design of a cryogenic thermoelectric generator.
… design captures some of the heat required for vaporizing or initial heating of the liquid nitrogen to produce electricity. The thermoelectric generator uses pressurized liquid nitrogen as its cold reservoir and ambient air as the high-temperature reservoir to generate power. This study …
-
Radiopurity measurement of acrylic for the DEAP-3600 dark matter experiment
… acrylic vessel is 1.1 × 10^−20 g/g Pb-210. By vaporizing a large quantity of acrylic and counting the concentrated residue with an ultralow background HPGe well detector and a low background alpha spectrometer, the bulk acrylic was found to have an upper limit of 10^−19 g/g Pb-210. The design, …
-
Structure and stabilization of cryogenic spray flames
… plate with fuel injection and then above a vaporizing reactant are considered. Finally, the situation of a flame behind a step over a vaporizing reactant is analysed. This is a realistic model of the base of a cyrogenic spray flame. Through this progression the non-dimensional parameters …
-
Effect of operating variables on composition of overhead vapors and residue from a continuous flash distillation for the system methanol-water at atmospheric and sub-atmospheric pressures
… of a liquid hold-up of 445 cubic inches; vaporizing temperatures of 172 °F, 166 °F, and 162 °F; stirrer speeds of zero, 500, 1000, 1500, and 2000 revolutions per minute; and feed rates varying from 0.01 to 0.50 pounds per minute. From the results obtained it was concluded that the fraction …
-
Effect of fuel properties on the first cycle fuel delivery in a Port Fuel Injected Spark Ignition Engine
… for fuel delivery - the process of injecting and vaporizing liquid fuel to create a combustible air-fuel mixture. As a result, only a small fraction of the injected fuel mass contributes to the combustible mixture; the fraction is less than 10% at cold ambient temperatures. With fast light off …
-
A Study of Combustion in Supersonic Streams
… impulse of 5760 sec. The interaction of a vaporizing liquid droplet with a supersonic stream is considered. Additional refinements were made in the existing theories on droplet trajectory to include the influences of a separated zone and the normal component of velocity of the external …
-
Solid-state joining of titanium alloy to stainless steel
… were made by the solid-state welding methods of vaporizing foil actuator welding (VFAW) and mash seam resistance welding (MSW). A Nb interlayer was used in the MSW process as a diffusion barrier due to the relative higher heat input and longer welding time in comparison to the VFAW process. The …
-
Measurement and modeling of fluid-fluid miscibility in multicomponent hydrocarbon systems
… mass transfer effects (combined vaporizing and condensing mass transfer mechanims) in fluid-fluid miscibility determination. A new mechanistic Parachor model has been developed to model dynamic gas-oil miscibility and to determine the governing mass transfer mechanism responsible …
-
Two-dimensional, Hydrodynamic Modeling of Electrothermal Plasma Discharges
… walls. The capillary walls ablate by melting and vaporizing and by sublimation. The newly developed model and code is called the Three-fluid, 2D Electrothermal Plasma Flow Simulator (THOR). THOR simulates the electron, ion, and neutral species as separate fluids coupled through interaction terms. …